#1 Allow searches to be made from the main page

utils/file_utils.py

@@ -0,0 +1,11 @@
+ALLOWED_EXTENSIONS = {'png', 'jpg', 'jpeg', 'gif'}
+
+
+def allowed_file(filename):
+    """ Ensures only filenames ending with the correct extension are allowed.
+        Note: This does not verify that the content inside of the file
+        matches the type specified
+    """
+    return '.' in filename and \
+           filename.rsplit('.', 1)[1].lower() in ALLOWED_EXTENSIONS
+